Viltrox AF 9mm F2.8 XF 9mm
Rokinon AF 50mm f/1.4 50mm
What Buyers Say
Viltrox AF 9mm F2.8 XF 9mm
The Viltrox lenses receive overwhelmingly positive feedback for their exceptional value, sharp image quality, and solid build. Users praise the fast apertures and autofocus performance, though some note issues with chromatic aberration in high-contrast scenes and noisy autofocus on certain models. Overall, these lenses are seen as a budget-friendly alternative that punches above their price point.
Pros
- Excellent value for money
- Sharp image quality wide open
- Solid metal construction
- Fast and accurate autofocus
- Pleasing bokeh
Cons
- Chromatic aberration in high contrast
- Noisy autofocus in video
- Slow autofocus in low light
- No weather sealing
- Front-heavy on small bodies
Rokinon AF 50mm f/1.4 50mm
The Rokinon 50mm f/1.4 lens receives generally positive feedback for its excellent value, sharp optics, and solid build quality, especially for astrophotography and low-light use. However, many users note that the autofocus can be inconsistent and unreliable for fast-moving subjects, and some copies have decentering issues. The lens is fully manual on certain mounts, which is a key consideration for buyers.
Pros
- Excellent value for money
- Sharp optics for the price
- Solid all-metal build quality
- Great for astrophotography
- Good low-light performance at f/1.4
Cons
- Inconsistent autofocus performance
- Autofocus unreliable for fast-moving subjects
- Some copies have decentering issues
- Soft corners at f/1.4
- Fully manual on certain mounts
Scores
Specifications
| Viltrox AF 9mm F2.8 XF 9mm | Rokinon AF 50mm f/1.4 50mm | |
|---|---|---|
| Optics | ||
| Type | wide-angle | prime |
| Focal Length Min | 9 mm | 50 mm |
| Focal Length Max | 9 mm | 50 mm |
| Elements | 13 | 9 |
| Groups | 11 | 6 |
| Aspherical Elements | 2 | 2 |
| ED Elements | 3★ | 1 |
| Coating | HD multilayer nano coating | Ultra Multi-Coating |
| Aperture | ||
| Max Aperture | f/2.8 | f/1.4 |
| Min Aperture | f/2.8 | f/1.4 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | 7 | 8★ |
| Build | ||
| Mount | Fujifilm X | Sony E |
| Format | APS-C | full-frame★ |
| Weather Sealed | ✗ | ✓★ |
| Weight | 0.17 kg★ | 0.42 kg |
| Filter Thread | 58 mm | 77 mm |
| AF & Stabilization | ||
| AF Type | STM★ | manual focus only |
| Stabilization | ✓★ | ✗ |
| Focus | ||
| Min Focus Distance | 130 mm★ | 450 mm |
| Max Magnification | 1:6.66 | 1:6.25 |
Pros & Cons
Viltrox AF 9mm F2.8 XF 9mm
- Strong macro (89th percentile)89th %ile
- Strong build (87th percentile)87th %ile
- Strong aperture (87th percentile)87th %ile
- Strong social proof (86th percentile)86th %ile
- Below average versatility (34th percentile)
Rokinon AF 50mm f/1.4 50mm
- Strong aperture (97th percentile)97th %ile
- Strong bokeh (96th percentile)96th %ile
- Strong build (76th percentile)
- Below average af (14th percentile)14th %ile
- Below average user sentiment (30th percentile)
- Below average versatility (34th percentile)
Verdict
Scores 93 overall, wins 9 of 9 usage categories and 5 of 21 specs.